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		                        | National Stock Number:
 4820-00-765-8154
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 007658154
 
 Description:
 VALVE,PRESSURE EQUALIZING,GASEOU
 
 Detail:
 A VALVE CONSISTING OF A SINGLE DEADWEIGHT LOADED DISK, OR TWO DEADWEIGHT LOADED DISKS EACH WITH A SEPERATE SEAT. IT IS SPECIFICALLY DESIGNED FOR THE RELIEF OF SMALL PRESSURE AND VACUUM CONDITIONS WITHIN A TANK OR OTHER CONTAINER TO OR FROM THE ATMOSPHERE. THE CENTER OF A SINGLE DEADWEIGHT LOADED DISK MAY CONTAIN A SPRING LOADED DISK FORMING AN ADDITIONAL SEAT OR APERTURE. IT MAY BE SPRING LOADED AND/OR EQUIPPED WITH A MANUAL UNLOADER ON EITHER THE PRESSURE OR VACUUM SIDE. EXCLUDE VALVE, VACUUM BREAKING.
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 Manufacturer Information:
 
 | 391589 | 77445 | RTX CORPORATION |  | 488950 | 77445 | RTX CORPORATION |  | 782734 | 77445 | RTX CORPORATION |  | 783444 | 77445 | RTX CORPORATION | 
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 Techincal Specification:
 
 | SPECIAL FEATURES | FOUND IN T.O. 2J-TF33-14;U/O TF33-P7 ENGINE;DRAWING NAME VALVE ASSEMBLY,BREATHING PRESSURIZING | 
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